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The phrase "had a duration of" is grammatically correct and can be used in written English.
It is typically used to describe the length of time something lasted or took place. Example: The meeting had a duration of two hours, causing everyone to become restless and eager to leave.
Exact(60)
A year ago, the fund had a duration of 2.5 years.
Phase 1 had a duration of 60 min at 400 °C, 10 Hz, 30 N (Hertzian pressure 1300 MPa) and phase 2 had a duration of 15 min at 900 °C, 1 Hz, 30 N (Hertzian pressure 1300 MPa).
A four Latin square design was used in each test and each Latin square had a duration of 6 days.
The experimental campaign had a duration of 110 days and was characterized by three different sludge retention time (SRT) values (∞, 30 d and 15 d).
The Witwatersrand first-order depositional cycle was controlled largely by subduction-related tectonic loading and had a duration of c. 190 My.
Each period had a duration of four weeks (three weeks for diet adaptation and one week for measurements) and no interval in between them.
Each period had a duration of 3 wk (2 wk for diet adaptation and 1 wk for measurements), and the interval between them was 2 wk.
Thus, each trial had a duration of 5000 ms.
Simulations aimed at quantifying the temperature unevenness within pipe wall had a duration of 100 s.
PP sessions had a duration of 24 h with fixed ECMO and respiratory settings.
Overall, hypotensive events had a duration of 2.0 [0.7-6.3] [0.7-6.3]
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com